According to this article , the bus is the circuit that connects the motherboard . The faster the speed of the bus , the quicker data can be transferred . Bus speed is measured in MHz (Mega Hertz) and a bus speed of 66 MHZ means that that are 66 million cycles per second . Hertz means how the frequency of x every second
For CPU , 66 MHz means 66 million instructions can be processed every second
How about for Bus ?? How much data is terms of btyes is transferred for every cycle ??